问题
选择题
—Jack bought a new mobile phone the other day.
—______? That’s his third one in just one month.
A．Had he
B．Did he
C．Does he
D．Has he
答案
答案：B
:Did he?意为“是吗？”。根据所提供的情景Jack bought a new mobile phone the other day.可判断出要用一般过去时Did he did。